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#!/bin/bash
alert() {
echo "$*" >&2
}
die() {
echo "ERROR: $@"
exit 1
}
command_exists () {
type "$1" &> /dev/null;
}
dtb_to_dts () {
dtc -O dts -s $1
if [ $? -ne 0 ]; then
die "dtb_to_dts $1 failed!"
fi
}
dts_to_dtb () {
dtc -O dtb -s -@ $1
if [ $? -ne 0 ]; then
die "dts_to_dtb $1 failed!"
fi
}
remove_local_fixups() {
sed '/__local_fixups__/ {s/^\s*__local_fixups__\s*//; :again;N; s/{[^{}]*};//; /^$/ !b again; d}' $1
}
remove_overlay_stuff() {
# remove __symbols__, phandle, "linux,phandle" and __local_fixups__
sed "/__symbols__/,/[}];/d" $1 | sed "/\(^[ \t]*phandle\)/d" | sed "/\(^[ \t]*linux,phandle\)/d" | sed '/^\s*$/d' | remove_local_fixups
}
dt_diff () {
diff -u <(dtb_to_dts "$1" | remove_overlay_stuff) <(dtb_to_dts "$2" | remove_overlay_stuff)
}
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